ハートのダイヤ [Heart no Daiya] is a 2-book series with 2 primary works first released in 2010 with contributions by Mayu Shinjō.
#1 of 2 in ハートのダイヤ [Heart no Daiya]
2010 • 1 Reader • 192 pages • 4
#2 of 2 in ハートのダイヤ [Heart no Daiya]
2010 • 1 Reader • 176 pages • 4